公开(公告)号：WO2016118419A1

公开(公告)日：2016-07-28

申请号：PCT/US2016/013634

申请日：2016-01-15

Applicant: BAKER HUGHES INCORPORATED

Inventor： SINGH, Gulshan ,  JAEGER, Thomas ,  LEE, Erik N.

IPC: F04B49/22 ,  F04B49/06 ,  F04B53/10 ,  F04B47/00 ,  F04B19/04 ,  G01H1/00 ,  G01P15/00

CPC classification number: F04B51/00 ,  F04B49/065 ,  F04B49/22 ,  F04B2201/0604 ,  F04B2201/0802

Abstract: A method of monitoring and assessing valve conditions in a pump includes collecting data regarding timing of a pump piston and vibration of a pump fluid end, processing the data to form a filtered and transformed vibration signal, banding the vibration signal into high energy bands and low energy bands, and comparing a ratio of at least one high energy band to at least one low energy band of the vibration signal with at least one constant to determine valve condition.

Abstract translation: 监测和评估泵的条件的方法包括收集关于泵活塞的定时和泵流体端的振动的数据，处理数据以形成滤波和变换的振动信号，将振动信号分段为高能带和低 能带，并且将至少一个高能带与所述振动信号的至少一个低能带的比率与至少一个常数进行比较以确定阀状态。

公开(公告)号：WO2015038279A1

公开(公告)日：2015-03-19

申请号：PCT/US2014/051177

申请日：2014-08-15

Applicant: BAKER HUGHES INCORPORATED

Inventor： COOPER, Daniel Boyd ,  LEE, Erik N.

IPC: E21B47/00 ,  G01V1/40 ,  G01V1/48

CPC classification number: E21B47/123 ,  E21B47/00 ,  E21B47/0007 ,  E21B47/082 ,  E21B49/081 ,  G01S15/88

Abstract: An apparatus for monitoring vibration of a downhole component includes an optical fiber sensor including at least one optical fiber operably connected to an interrogation unit. The at least one optical fiber has a resonant segment that is fixedly attached to the component via attachment points on the component, the resonant segment between the attachment points being separate from the component and having a resonant frequency based at least on the length of the resonant segment.

Abstract translation: 一种用于监测井下部件的振动的装置包括光纤传感器，其包括可操作地连接到询问单元的至少一根光纤。 所述至少一个光纤具有通过所述部件上的连接点固定地附接到所述部件的谐振段，所述附接点之间的谐振段与所述部件分离并且具有至少基于所述谐振器的长度的谐振频率 分割。

公开(公告)号：WO2017105767A1

公开(公告)日：2017-06-22

申请号：PCT/US2016/062778

申请日：2016-11-18

Applicant: BAKER HUGHES INCORPORATED

Inventor： LEE, Erik N. ,  HOWARD, Jesse J.

IPC: E21B47/00 ,  G01V1/40 ,  G01V1/52 ,  E21B47/12

CPC classification number: E21B47/14 ,  E21B43/128 ,  E21B49/00

Abstract: A system includes a distributed acoustic sensing (DAS) optical fiber configured to be disposed with a downhole component, an interrogation device including an optical signal source configured to inject an optical signal into the DAS optical fiber and a receiver configured to detect return signals reflected from sensing locations in the fiber, and an acoustic telemetry unit configured to receive a communication from the downhole component and generate an acoustic signal having a frequency within a selected frequency range and encoded to carry the communication, the acoustic signal applied to a first section of the DAS optical fiber. The system also includes a processor configured to associate a first portion of the return signals with the first section and reproduce the communication based on the first portion, and associate a second portion of the return signals with a second section of the fiber and detect one or more acoustic events.

Abstract translation: 系统包括配置成与井下组件配置的分布式声学感测（DAS）光纤，包括光信号源的询问设备，所述光信号源被配置为将光信号注入到DAS光纤中， 接收器，被配置为检测从光纤中的感测位置反射的返回信号;以及声学遥测单元，被配置为接收来自井下组件的通信并且生成具有在选定频率范围内的频率并被编码以承载通信的声学信号，声学 信号施加到DAS光纤的第一部分。 该系统还包括处理器，该处理器被配置成将返回信号的第一部分与第一部分相关联并且基于第一部分再现通信并且将返回信号的第二部分与光纤的第二部分相关联并且检测一个或 更多的声音事件。

公开(公告)号：WO2015026468A1

公开(公告)日：2015-02-26

申请号：PCT/US2014/047792

申请日：2014-07-23

Applicant: BAKER HUGHES INCORPORATED

Inventor： LEE, Erik N.

IPC: E21B43/12 ,  G01V1/40 ,  G01V1/48

CPC classification number: G01F1/66 ,  E21B47/101

Abstract: A method of monitoring acoustic energy using distributed acoustic sensing. The method involves supplying a fluid flow at different pressures and sensing fluid flow characteristics in at least one location at each pressure. The data may be processed to provide a fluid resistance value related to a particular fluid flow at each location, collectively forming a fluid resistance index (FRI). The method may include following the initial fluid flow with a process flow, which may then be followed by another fluid flow. The flow characteristics of the latter fluid flow may be measured and compared with the initial fluid flow, providing a measure of the success of the process flow. In application, this method may be used to enhance downhole operations, including acid stimulation treatments.

Abstract translation: 使用分布式声学传感监测声能的方法。 该方法包括在不同压力下提供流体流并在每个压力下在至少一个位置感测流体流动特性。 可以处理数据以提供与每个位置处的特定流体流相关的流体阻力值，共同形成流体阻力指数（FRI）。 该方法可以包括随着具有工艺流程的初始流体流动，然后可以跟随另一流体流动。 可以测量后一流体流的流动特性并将其与初始流体流相比较，提供工艺流程成功的量度。 在应用中，该方法可用于增强井下作业，包括酸刺激处理。

公开(公告)号：WO2014143425A1

公开(公告)日：2014-09-18

申请号：PCT/US2014/013568

申请日：2014-01-29

Applicant: BAKER HUGHES INCORPORATED

Inventor： LEE, Erik N.

IPC: E21B47/14 ,  E21B47/16

CPC classification number: E21B47/00 ,  E21B47/10 ,  G01H13/00 ,  G01V2210/1429

Abstract: A passive acoustic system and a method of utilizing the passive acoustic system in a subsurface borehole are discussed. The method includes disposing the passive acoustic system in the borehole, the passive acoustic system including at least one passive acoustic resonator, and monitoring a frequency of an acoustic signal at the at least one passive acoustic resonator. The passive acoustic system includes a protective tubing, a fiber optic cable disposed within the protective tubing, a fluid layer between the fiber optic cable and the protective tubing, and at least one passive acoustic resonator, the at least one passive acoustic resonator representing an area within the protective tubing having a known geometry, wherein the fluid layer affects a frequency of an acoustic signal obtained from the at least one passive acoustic resonator.

Abstract translation: 讨论了一种被动声学系统和一种在地下钻孔中利用无源声学系统的方法。 该方法包括将无源声学系统设置在钻孔中，所述无源声学系统包括至少一个无源声谐振器，以及监测所述至少一个无源声谐振器处的声信号的频率。 被动声学系统包括保护管，布置在保护管内的光纤电缆，光纤电缆和保护管之间的流体层，以及至少一个无源声谐振器，所述至少一个无源声谐振器代表区域 在具有已知几何形状的保护管内，其中流体层影响从至少一个无源声谐振器获得的声信号的频率。

公开(公告)号：WO2015108668A1

公开(公告)日：2015-07-23

申请号：PCT/US2014/071483

申请日：2014-12-19

Applicant: BAKER HUGHES INCORPORATED

Inventor： LEE, Erik N.

IPC: E21B43/12 ,  E21B47/00 ,  G01V1/40

CPC classification number: E21B47/18 ,  E21B47/14

Abstract: A downhole acoustic sensing system includes a pulsator device configured and disposed to be arranged in a downhole environment, and a control system operatively connected to the pulsator device. The control system delivers at least one control input to the pulsator device to generate a sinusoidal acoustic signal.

Abstract translation: 井下声学传感系统包括配置和设置成布置在井下环境中的脉动器装置，以及可操作地连接到波轮装置的控制系统。 控制系统将至少一个控制输入传送到脉动器装置以产生正弦声信号。

公开(公告)号：WO2015076966A1

公开(公告)日：2015-05-28

申请号：PCT/US2014/061554

申请日：2014-10-21

Applicant: BAKER HUGHES INCORPORATED

Inventor： LEE, Erik N. ,  JOHNSTON, William ,  COOPER, Daniel Boyd

IPC: E21B43/12 ,  E21B47/00 ,  G01V1/40

CPC classification number: E21B43/14 ,  E21B47/101

Abstract: A method of monitoring fluid flow in a borehole includes measuring acoustics at a plurality of locations along a downhole assembly in a borehole and calculating a fluid flow rate at the plurality of locations along the downhole assembly based on measuring the acoustics at the plurality of locations.

Abstract translation: 监测钻孔中的流体流动的方法包括测量在钻孔中的井下组件的多个位置处的声学，并且基于测量多个位置处的声学来计算沿井下组件的多个位置处的流体流速。

公开(公告)号：WO2015047607A1

公开(公告)日：2015-04-02

申请号：PCT/US2014/052013

申请日：2014-08-21

Applicant: BAKER HUGHES INCORPORATED

Inventor： COOPER, Daniel Boyd ,  LEE, Erik N.

IPC: G01H1/12

CPC classification number: G01H9/004 ,  G01V2210/1429

Abstract: A system and method for measuring the vibration of a structure of interest are disclosed. The disclosure provides an acoustic isolation structure to substantially reduce response to acoustic energy generated by external physical stimuli. The acoustic isolation structure is formed by placing a housing, such as an outer conduit, around an inner conduit, forming a gap between the housing and the inner conduit. The gap is then configured to serve as an acoustic isolation layer by either filling the gap with an acoustic isolation material or by substantially evacuating the gap and sealing the ends thereof.

Abstract translation: 公开了一种用于测量感兴趣结构的振动的系统和方法。 本公开提供了一种声学隔离结构，以显着降低对由外部物理刺激产生的声能的响应。 声隔离结构通过将外壳（例如外导管）放置在内导管周围形成，在壳体和内导管之间形成间隙。 然后将间隙配置为用声学隔离层填充间隙，或通过基本上排空间隙并密封其端部来用作声隔离层。